Article · Epoxyworks

Controlling Exotherm

By Mike Barnard

Type: Article
Level: Intermediate
Price: Free
Published: 2014

About this lesson

Technical explainer from a marine-epoxy manufacturer's magazine on why thick resin pours overheat, with exotherms that can exceed 400°F and crack a casting, and concrete fixes: pouring in timed multiple batches, choosing a slower hardener, working in a cooler environment, and using heat-sink materials that pull heat away rather than trap it.